Explanation
In this series, we have three string instruments and one wind instrument:
This is a classification-based logical series. The pattern is essentially a group of three string instruments interrupted by a wind instrument. To maintain the pattern of "String, String, Wind, String...", the next logical item should be a Wind instrument to mirror the structure or continue the set. Among the choices provided, Flute is the only wind instrument.
Correct Option: (c) Flute
